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Carbon ceramic linear resistor, and preparation method of composite insulating layer on side surface of carbon ceramic linear resistor
The invention discloses a carbon ceramic linear resistor, and a preparation method of a composite insulating layer on the side surface of the carbon ceramic linear resistor. The preparation method ofthe composite insulating layer comprises the following steps: firstly, uniformly mixing bentonite, Zuoyun soil, calcined alumina and chromium oxide through ball milling to form high-resistance layer slurry, coating the side surface of an unsintered carbon ceramic resistor blank with the high-resistance layer slurry, and sintering together with a resistor to obtain a high-resistance layer on the side surface of the resistor; then uniformly mixing glass powder, mullite powder or calcined bauxite oxide, plastic clay and chromium oxide through ball milling to form glass glaze slurry, coating the surface of the high-resistance layer with the glass glaze slurry, and sintering to form the green and smooth insulating layer on the side surface of the resistor. The insulating layer prepared in the invention can obviously improve the endurance capacity of the carbon ceramic linear resistor to high-voltage and large-current impact, and prevent the resistor from flashover along the surface.
本发明公开一种碳陶瓷线性电阻及其侧面复合绝缘层的制备方法，复合绝缘层的制备方法，首先将膨润土、左云土、煅烧矾土和氧化铬经球磨均匀混合成高阻层浆料，将高阻层浆料涂覆在未烧结的碳陶瓷电阻坯体侧面然后与电阻一同烧结，在电阻侧面得到一层高阻层；然后将玻璃粉、莫来石粉或煅烧氧化铝矾土、可塑性黏土和氧化铬经球磨均匀混合成玻璃釉浆料，将玻璃釉浆料涂覆在高阻层的表面，经烧结后在电阻侧面形成绿色、光滑的绝缘层；本发明制备的绝缘层可以明显提高碳陶瓷线性电阻对高电压、大电流冲击的耐受能力，防止电阻沿面闪络。
Carbon ceramic linear resistor, and preparation method of composite insulating layer on side surface of carbon ceramic linear resistor
The invention discloses a carbon ceramic linear resistor, and a preparation method of a composite insulating layer on the side surface of the carbon ceramic linear resistor. The preparation method ofthe composite insulating layer comprises the following steps: firstly, uniformly mixing bentonite, Zuoyun soil, calcined alumina and chromium oxide through ball milling to form high-resistance layer slurry, coating the side surface of an unsintered carbon ceramic resistor blank with the high-resistance layer slurry, and sintering together with a resistor to obtain a high-resistance layer on the side surface of the resistor; then uniformly mixing glass powder, mullite powder or calcined bauxite oxide, plastic clay and chromium oxide through ball milling to form glass glaze slurry, coating the surface of the high-resistance layer with the glass glaze slurry, and sintering to form the green and smooth insulating layer on the side surface of the resistor. The insulating layer prepared in the invention can obviously improve the endurance capacity of the carbon ceramic linear resistor to high-voltage and large-current impact, and prevent the resistor from flashover along the surface.
本发明公开一种碳陶瓷线性电阻及其侧面复合绝缘层的制备方法，复合绝缘层的制备方法，首先将膨润土、左云土、煅烧矾土和氧化铬经球磨均匀混合成高阻层浆料，将高阻层浆料涂覆在未烧结的碳陶瓷电阻坯体侧面然后与电阻一同烧结，在电阻侧面得到一层高阻层；然后将玻璃粉、莫来石粉或煅烧氧化铝矾土、可塑性黏土和氧化铬经球磨均匀混合成玻璃釉浆料，将玻璃釉浆料涂覆在高阻层的表面，经烧结后在电阻侧面形成绿色、光滑的绝缘层；本发明制备的绝缘层可以明显提高碳陶瓷线性电阻对高电压、大电流冲击的耐受能力，防止电阻沿面闪络。
Carbon ceramic linear resistor, and preparation method of composite insulating layer on side surface of carbon ceramic linear resistor
一种碳陶瓷线性电阻及其侧面复合绝缘层的制备方法
YAO XURUI (author) / CHEN WEI (author) / CHEN WEIYUE (author) / MA HONGMEI (author) / ZHAO SHUANCUI (author)
2020-08-21
Patent
Electronic Resource
Chinese
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